CN104246381B - The number control device of heat source system and its method and heat source system - Google Patents
The number control device of heat source system and its method and heat source system Download PDFInfo
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- CN104246381B CN104246381B CN201380010675.8A CN201380010675A CN104246381B CN 104246381 B CN104246381 B CN 104246381B CN 201380010675 A CN201380010675 A CN 201380010675A CN 104246381 B CN104246381 B CN 104246381B
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000005057 refrigeration Methods 0.000 claims description 92
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 26
- 239000003507 refrigerant Substances 0.000 description 7
- 238000011068 loading method Methods 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004781 supercooling Methods 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B15/00—Systems controlled by a computer
- G05B15/02—Systems controlled by a computer electric
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
- F25B1/053—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type of turbine type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/85—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using variable-flow pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/39—Dispositions with two or more expansion means arranged in series, i.e. multi-stage expansion, on a refrigerant line leading to the same evaporator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/025—Motor control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/047—Water-cooled condensers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/072—Intercoolers therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/13—Economisers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/23—Separators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
- F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
- F25B2700/195—Pressures of the condenser
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
- F25B2700/197—Pressures of the evaporator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2116—Temperatures of a condenser
- F25B2700/21161—Temperatures of a condenser of the fluid heated by the condenser
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2116—Temperatures of a condenser
- F25B2700/21163—Temperatures of a condenser of the refrigerant at the outlet of the condenser
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2117—Temperatures of an evaporator
- F25B2700/21171—Temperatures of an evaporator of the fluid cooled by the evaporator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/02—Subcoolers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
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- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
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- Air Conditioning Control Device (AREA)
Abstract
The present invention provides a kind of number control device of heat source system and its method and heat source system, its object is to prevent heat source machine from frequently repeating starting and stopping.When present operating condition meets and increases level primary condition, whether meet when judging to increase level 1 on present operating number and subtract a grade primary condition, if it is determined that for being unsatisfactory for subtracting a grade primary condition, then starting 1 heat source machine.Also, when present operating condition meets and subtracts grade primary condition, increasing level primary condition whether is met when judging to subtract level 1 on present operating number, if it is determined that for being unsatisfactory for increasing level primary condition, then stopping 1 heat source machine.
Description
Technical field
The present invention relates to a kind of number control device of heat source system and its method and heat source system.
Background technology
Unit number control method as the heat source machine in the heat source system for possessing multiple heat source machines, it is known to such as patent text
Offer the method disclosed in 1.There is the achievement coefficient for determining in each transducer drive turbine heat source machine respectively disclosed in patent document 1
(COP) become load factor scope more than setting, and so that the load factor of the heat source machine of each transducer drive to be both limited in
Mode in the range of fixed load factor controls frequency converter.
Conventional art document
Patent document
Patent document 1：Japanese Patent Publication 2005-114295 publication
The summary of invention
Invention technical task to be solved
As described above, when carrying out the unit number control of heat source machine using load factor scope set in advance, it can be considered that as follows
Unit number control.
For example, when the load factor of the heat source machine in operating exceedes the higher limit of load factor scope, heat source machine is increased
Level, when the load factor of heat source machine is less than the lower limit of load factor scope, carries out subtracting level to heat source machine.
However, the method there is a possibility that the starting of heat source machine and stop frequently repeating.As shown in fig. 7, for example setting
For the higher limit of load factor scope to be 80%, lower limit be 60% when, the load of 2 heat source machines A, B is 45%, in order that load
When rate subtracts level 1 less than the lower limit 60% of load factor scope, after level is subtracted, the load factor of 1 heat source machine A becomes 90%, leads
Cause the higher limit 80% more than load factor scope.Thus, the increasing level of heat source machine is carried out, and cause heat source machine subtracts level and increasing level repetition
Occur.
Following method is contemplated that as other unit number control methods, i.e., for example when in the number of units of heat source machine in operation
The load factor of each heat source machine when increasing level 1 increases level 1 when exceeding the lower limit of load factor scope, when heat source machine in operation
Number of units on each heat source machine when subtracting level 1 load factor within the higher limit of load factor scope when subtract level 1.
However, there is also the starting of heat source machine and the possibility for stopping frequently repeating in the method.As shown in figure 8, for example
When being set as the higher limit of load factor scope to be 60%, lower limit being 20%, when the refrigeration load of 2 heat source machines A, B is 25%,
Heat source machine load when subtracting level 1 is 50%, therefore subtracts grade condition and subtract level 1 to meet.Subtracting level 1 afterwards, thermal source
The load factor of machine A becomes 50%, and current heat source machine load when increasing level 1 becomes 25%, therefore meets and increases level condition and increase level 1
Platform.Thus, the level that subtracts of heat source machine is caused to repeat generation with level is increased.
Content of the invention
It is an object of the invention to, a kind of heat source machine that is prevented from is provided and frequently repeats the heat source system for starting and stopping
Number control device and its method and heat source system.
For solving the means of technical task
1st mode of the present invention is a kind of number control device of heat source system, and which is applied to and possesses multiple heat source machines
Heat source system, carries out the unit number control of the heat source machine by exporting starting order and halt instruction to each heat source machine,
The number control device of the heat source system possesses：Storing mechanism, refrigeration load and the requirement being stored with by the heat source machine
The increasing level primary condition of the primary condition when relationship specifications between refrigeration load carry out increasing level to heat source machine and by the heat
The refrigeration load of source machine and primary condition when requiring that relationship specifications between refrigeration load are carried out subtracting to heat source machine grade subtract level
Primary condition；Indicating mechanism is started, when the increasing level primary condition is met, judges to increase level 1 on present operating number
When whether meet described subtract a grade primary condition, if it is determined that for be unsatisfactory for described subtract a grade primary condition, then start 1 thermal source
Machine；And stop indicating mechanism, when meet described subtract grade primary condition when, judgement when subtracting level 1 on present operating number is
No meet described increasing level primary condition, if it is determined that for be unsatisfactory for described increasing level primary condition, then stop 1 heat source machine.
According to the present invention, when judging that present operating condition meets increasing level primary condition, envision according to the judgement actual
Carry out increasing the situation of level, confirm the final judgement for being unsatisfactory for after subtracting grade primary condition carrying out increasing level in this condition.Also, with
Judge that present operating condition is met when subtracting grade primary condition, envisioning according to the judgement actually carries out subtracting the situation of level sample,
The final judgement of level is carried out subtracting after confirming to be unsatisfactory for increasing level primary condition under the state.Thereby, it is possible to suppressing to start and stopping
Continually repeated.
In the number control device of above-mentioned heat source system, the starting indicating mechanism is requiring refrigeration load more than making operating
In 1 refrigeration load of each described heat source machine when being operated with the higher limit of load factor scope set in advance when, can determine that for
Meet the increasing level primary condition.
In the number control device of above-mentioned heat source system, the stopping indicating mechanism requiring refrigeration load less than making operating
In 2 refrigeration load of each described heat source machine when being operated with the lower limit of load factor scope set in advance when, can determine that for
Subtract a grade primary condition described in meeting.
In the number control device of above-mentioned heat source system, the starting indicating mechanism increases level on present operating number
When 1, judge to be unsatisfactory for whether the state for subtracting grade primary condition maintains specified time limit set in advance, if be unsatisfactory for
The state of the condition maintains the stipulated time, then can start 1 heat source machine.
Carry out increasing the final decision of level thus by operating condition of the consideration within specified time limit such that it is able to avoid receiving
To the impact of deviation, and the erroneous judgement for increasing level can be reduced.
In the number control device of above-mentioned heat source system, the stopping indicating mechanism subtracting level on present operating number
When 1, judge to be unsatisfactory for whether the state for increasing level primary condition maintains specified time limit set in advance, if being unsatisfactory for this
The state of condition maintains the stipulated time, then can stop 1 heat source machine.
Thus by determining whether to maintain specified time limit such that it is able to avoid being affected by deviation, and can reduce
Subtract the erroneous judgement of level.
In the number control device of above-mentioned heat source system, described require refrigeration load can also be on rule set in advance
The value for requiring that refrigeration load is equalized in fixing time.
In this way, by using the equilibrium value in specified time limit such that it is able to avoid the impact of deviation, and increasing can be reduced
Level and the erroneous judgement for subtracting level.
In the number control device of above-mentioned heat source system, the starting indicating mechanism possesses and is set as the load factor scope
Higher limit more than pressure increase level load factor, when the heat source machine load factor for described force increase level load factor more than when,
Can force to start 1 heat source machine.
So set and load factor is forced, heat source machine load factor is mandatory when reaching pressure increasing level load factor to carry out increasing level, because
This more reliably can carry out meeting the operating for requiring load.
In the number control device of above-mentioned heat source system, the starting indicating mechanism possesses and is set as the load factor scope
Lower limit below pressure subtract a grade load factor, when the heat source machine load factor for described force subtract below grade load factor when,
Can force to stop 1 heat source machine.
So set pressure and subtract a grade load factor, heat source machine load factor reaches mandatory when pressure subtracts grade load factor being subtracted
Level, therefore, it is possible to be operated each heat source machine with more appropriate state.
2nd mode of the present invention is the unit number control dress for possessing multiple heat source machines and the heat source system described in any of the above-described
The heat source system that puts.
3rd mode of the present invention is a kind of unit number control method of heat source system, and which is applied to and possesses multiple heat source machines
Heat source system, carries out the unit number control of the heat source machine by exporting starting order and halt instruction to each heat source machine,
Wherein, prestore the refrigeration load by the heat source machine and require that the relationship specifications between refrigeration load are carried out to heat source machine
The increasing level primary condition of primary condition and the refrigeration load by the heat source machine when increasing level and require between refrigeration load
Primary condition when relationship specifications are carried out subtracting to heat source machine grade subtract a grade primary condition, the unit number control method of the heat source system
Possess：Start and step is indicated, when the increasing level primary condition is met, when judging and increasing level 1 on present operating number be
Subtracting a grade primary condition described in no satisfaction, if it is determined that subtracting a grade primary condition described in being unsatisfactory for, then starting 1 heat source machine；And
Stop indicating step, when meet described subtract grade primary condition when, whether judgement is met when subtracting level 1 on present operating number
The increasing level primary condition, if it is determined that for being unsatisfactory for the increasing level primary condition, then stop 1 heat source machine.
Invention effect
According to the present invention, play and be prevented from frequently repeating the starting of heat source machine and the effect of stopping.
Description of the drawings
Fig. 1 is the figure of the structure of the heat source system involved by the 1st embodiment for showing schematically the present invention.
Fig. 2 is the figure for representing detailed construction when being suitable for turbine heat source machine on the heat source machine of Fig. 1.
Fig. 3 is the figure of the structure of the control system for showing schematically the heat source system shown in Fig. 1.
Fig. 4 is mainly to represent unit number control that the host control device of the 1st embodiment for the present invention possesses
The functional block diagram of function.
Fig. 5 is the flow chart of the order of the unit number control method involved by the 1st embodiment for representing the present invention.
Even if Fig. 6 is exemplified with the situation that also cannot suitably carry out increasing level in the case of with 100% load operation
Figure.
Fig. 7 is the figure for illustrating to the problem points of conventional unit number control.
Fig. 8 is the figure for illustrating to the problem points of conventional unit number control.
Fig. 9 is the flow chart of the order of the unit number control method involved by the 3rd embodiment for representing the present invention.
Figure 10 is the flow chart of the order of the unit number control method involved by the 3rd embodiment for representing the present invention.
Specific embodiment
[the 1st embodiment]
Hereinafter, refer to the attached drawing to the number control device of the heat source system involved by the 1st embodiment of the present invention and its
Method and heat source system are illustrated.
Fig. 1 is the figure of the structure of the heat source system 1 involved by the 1st embodiment for showing schematically the present invention.Thermal source system
System 1 for example possesses air conditioner, water heater and cools down the cold water (thermophore) supplied by the external loadings such as shop equipment 3
Or multiple heat source machine 11a, 11b, 11c of heating.Although exemplified with the feelings for being provided with 3 heat source machines 11a, 11b, 11c in Fig. 1
Condition, but it is capable of the setting of numbers of arbitrary decision heat source machine.
In the upstream side of each heat source machine 11a, 11b, the 11c observed from cold water stream, it is respectively arranged with and cold water is pressurizeed
Water supply pump 12a, 12b, 12c of conveying.Cold water from return header 14 is by these water supply pumps 12a, 12b, 12c to each thermal source
Machine 11a, 11b, 11c are conveyed.Each water supply pump 12a, 12b, 12c are set as being driven by frequency-conversion and speed-regulation motor (not shown),
Changeable flow control is carried out from there through rotating speed is changed.
Supply header 13 collects the cold water obtained in each heat source machine 11a, 11b, 11c.Collect in supply header 13
Cold water supply is to external loading 3.In external loading 3 because be supplied to air-conditioning etc. and temperature produce change cold water be delivered to backflow
Collector 14.Cold water is split in return header 14 and is delivered to each heat source machine 11a, 11b, 11c.
Bypass pipe arrangement 18 is provided between supply header 13 and return header 14.It is configured in bypass pipe arrangement 18 by adjustment
The aperture of by-passing valve 19 such that it is able to the cool water quantity of adjustment supply to external loading 3.
The detailed construction being shown with Fig. 2 when being suitable for turborefrigerator on heat source machine 11a, 11b, 11c.Same in figure, be
Readily appreciate and 1 heat source machine 11a is only shown in 3 heat source machines being arranged in parallel.
Heat source machine 11a is configured to realize the structure of two stages of compression double expansion K cryogenic treatment circulation.The turborefrigerator tool
Standby：Turbo-compressor 31, is compressed to cold-producing medium；Condenser 32, to the HTHP that compressed by turbo-compressor 31
Gas refrigerant is condensed；Supercooling implemented by subcooler 33, the liquid refrigerant to being condensed by condenser 32；High pressure is swollen
Swollen valve 34, makes the expanding liquidus refrigerant from subcooler 33；Intercooler 37, is connected with high-pressure expansion valve 34 and and whirlpool
The interlude of wheel compression machine 31 and inflated with low pressure valve 35 connect；And evaporimeter 36, make the liquid expanded by inflated with low pressure valve 35
Cold-producing medium evaporates.
Turbo-compressor 31 is centrifugal two-stage compressor, is driven by being controlled the motor 39 of rotating speed by frequency converter 38.
Frequency converter 38 controls its output by heat source machine control device 10a.Control is provided with the refrigerant suction port of turbo-compressor 31
The inlet guide vance of suction refrigerant flow is (hereinafter referred to as " IGV ".) 40, the capacity control of turbine heat source machine 11a can be carried out
System.
The pressure sensor 51 being provided with condenser 32 for measuring condensating refrigerant pressure Pc.Pressure sensor 51 defeated
Go out to be sent to heat source machine control device 10a.
Subcooler 33 is arranged in cold-producing medium of the cold-producing medium stream downstream of condenser 32 to being condensed and implements supercooling.
The TEMP of refrigerant temperature Ts after measurement supercooling is provided with close proximity to the cold-producing medium stream downstream rear of subcooler 33
Device 52.
The Cooling Heat Transfer pipe 41 being inserted through on condenser 32 and subcooler 33 for being cooled down to them.Cooling current
Amount F2 is measured by flowmeter 54, and cooling water outlet temperature Tcout is measured by temperature sensor 55, cooling water inlet temperature
Tcin is measured by temperature sensor 56.Cooling water is oriented to condensation in cooling tower (not shown) to after external heat rejection, again
Device 32 and subcooler 33.
In intercooler 37, the pressure sensor 57 that is provided with for measuring intermediate pressure Pm.Use is provided with evaporimeter 36
Pressure sensor 58 in measurement evaporating pressure Pe.Rated temperature (such as 7 is obtained by absorbing heat in evaporimeter 36
DEG C) cold water.The cold water being inserted through in evaporimeter 36 for being cooled down to the cold water of supply to external loading 3 (referring to Fig. 1)
Heat-transfer pipe 42.Cold water flow F1 is measured by flowmeter 59, and cold water outlet temperature Tout is measured by temperature sensor 60, cold water
Inlet temperature Tin is measured by temperature sensor 61.
Hot-gas bypass pipe 43 is provided between the gas phase portion of condenser 32 and the gas phase portion of evaporimeter 36.Also, be provided with for
Control flows through the hot gas bypass valve 44 of the flow of the cold-producing medium in hot-gas bypass pipe 43.Adjusted by hot gas by hot gas bypass valve 44
Through-current capacity such that it is able to the volume controlled in the very little region that realization fully cannot be controlled by IGV40.
In heat source machine 11a shown in Fig. 2, condenser 32 and subcooler 33 are set, and by cold-producing medium in cooling tower
To heat exchange is carried out between the cooling water of external heat rejection, the situation to heating cooling water is described, but for example can be also set to
Following structure, that is, configure air heat exchanger to replace condenser 32 and subcooler 33, in air heat exchanger, in outside
Heat exchange is carried out between gas and cold-producing medium.
Heat source machine 11a, 11b, 11c suitable for present embodiment is not limited to the above-mentioned whirlpool only with refrigerating function
Wheel refrigeration machine, for example, can also be only have heating function or the equipment with refrigerating function and this both sides of heating function.And
And, it can also be air that the medium with cold-producing medium heat exchange can both be water.Heat source machine 11a, 11b, 11c can both unify to be same
The heat source machine of one species, it is also possible to be mixed with various heating sources machine.
Fig. 3 is the figure of the structure of the control system for showing schematically the heat source system 1 shown in Fig. 1.As shown in figure 3, conduct
Heat source machine control device 10a, 10b, 10c of the control device of each heat source machine 11a, 11b, 11c via communication media 21 with upper
Control device (number control device) 20 connects, and being formed to carry out the structure of two-way communication.Host control device 20 is, for example,
The overall control device of control heat source system, for example having carries out the heat source machine of the requirement load starting with respect to external loading 3
The number control device of 11a, 11b, 11c.
Host control device 20, heat source machine control device 10a, 10b, 10c are, for example, computer, and possess CPU (central authorities' fortune
Calculate processing meanss), the primary storage such as RAM (Random Access Memory), auxilary unit and by with outside
Equipment is carried out communicating with the communicator etc. of receive information.
Auxilary unit be can computer read recording medium, for example, be disk, CD, CD-ROM, DVD-ROM
And semiconductor memory etc..Be stored with the auxilary unit various programs, and CPU is from auxilary unit to main storage means
Reading program, and various process are realized by executing.
Fig. 4 is the work(for mainly representing the unit number control possessed about the host control device 20 involved by present embodiment
The functional block diagram of energy.As shown in figure 4, host control device 20 possesses by storage part (storing mechanism) 22, starts instruction unit (starting
Indicating mechanism) 23 and stop instruction unit (stop indicating mechanism) 24 as primary structure.
Be stored with storage part 22 following condition：Increase level primary condition, primary condition when making heat source machine increase level passes through heat
The refrigeration load of source machine and require relation between refrigeration load to specify；And subtract a grade primary condition, when so that heat source machine is subtracted grade
Primary condition by the refrigeration load of heat source machine and requires relation between refrigeration load specifying.
In present embodiment, increase level primary condition and be for example defined as " refrigeration load being required more than each thermal source made in operating
The 1st refrigeration load when machine is operated with the higher limit of load factor scope set in advance ", subtracts a grade primary condition and is for example defined as
" require that refrigeration load is less than the 2nd when making each heat source machine in operating operate with the lower limit of load factor scope set in advance
Refrigeration load ".
Load factor scope arbitrarily can set.Become more than setting negative as an achievement coefficient for being set in heat source machine
In the range of load rate.
Instruction unit 23 is started when present operating condition meets and increases level primary condition, judge on present operating number
Whether meet when increasing level 1 and subtract a grade primary condition, if it is determined that for being unsatisfactory for subtracting a grade primary condition, then heat source machine output starts 1
The instruction of platform heat source machine.
Stop instruction unit 24 when present operating condition meets and subtracts grade primary condition, judge on present operating number
Whether increasing level primary condition is met when subtracting level 1, if it is determined that for being unsatisfactory for increasing level primary condition, then heat source machine output stops 1
The instruction of platform heat source machine.
Hereinafter, the unit number control method executed by host control device 20 is illustrated with reference to Fig. 5.Fig. 5 is to represent
The flow chart of the order of unit number control method.The step of Fig. 5, SA1 was executed to step SA5 by above-mentioned starting instruction unit 23, step
SA6 is executed to step SA10 by above-mentioned stopping instruction unit 24.
First, the step of Fig. 5 in SA1, the heat source machine occurred in operating is calculated with load factor scope set in advance
Higher limit operate when heat source machine refrigeration load QHi_n(the 1st refrigeration load).
Refrigeration load QHi_nCalculated by below equation (1).
[formula 1]
In above-mentioned formula (1), q is the ability of heat source machine, and Hi is the higher limit of load factor scope, and n is present heat source machine
Operating number.
Then, in step SA2, judge the requirement refrigeration load Q overall to present thermal source whether than in step SA1
The 1st refrigeration load QHi_n for calculating is big.Wherein, present requirement refrigeration load Q is drawn by below equation (2).
Q=Δ T × Fc × c...... (2)
In formula (2), Δ T is the difference of the cold water inlet temperature Tin and cold water outlet temperature Tout of heat source machine, and Fc is cold water
Flow, c are specific heat.
In step SA2, present requirement refrigeration load Q is more than the 1st refrigeration load QHi_nWhen, carry out step SA3.
In step SA3, it is contemplated that increase the state of level 1 in existing heat source machine number of units n in operation, and count in this condition
Calculate the 3rd refrigeration load Q when each heat source machine is operated with the lower limit of load factor scopeLo_n+1.
3rd refrigeration load QLo_n+1Calculated by below equation (3).
[formula 2]
In above-mentioned formula (3), q is the ability of heat source machine, and Lo is the lower limit of load factor scope, and n+1 is the heat after increasing level
Source machine operating number.
Then, in step SA4, judge whether present requirement refrigeration load Q is more than the 3rd refrigeration load QLo_n+1.Its knot
Really, it is desirable to which refrigeration load Q is the 3rd refrigeration load QLo_n+1When following (in step SA4 it is " NO "), does not carry out increasing level and returning
Step SA1.On the other hand, it is desirable to which refrigeration load Q is more than the 3rd refrigeration load QLo_n+1When (in step SA4 be " YES "), carry out
Step SA5, increases 1 heat source machine of level return to step SA1.
On the other hand, in step SA2, it is to calculate in step SA1 to the overall requirement refrigeration load Q of present thermal source
1st refrigeration load QHi_nWhen following (in step SA2 it is " NO "), carries out step SA6.
In step SA6, when the existing heat source machine in operation of calculating is operated with the lower limit of load factor scope set in advance
The 2nd refrigeration load QLo_n.
2nd refrigeration load QLo_nCalculated by below equation (4).
[formula 3]
In above-mentioned formula (4), q is the ability of heat source machine, and Lo is the lower limit of load factor scope, and n is present heat source machine
Operating number.
Then, in step SA7, judge whether present requirement refrigeration load Q is less than the 2nd refrigeration load QLo_n.As a result,
Present requirement refrigeration load Q is the 2nd refrigeration load QLo_nWhen above, return to step SA1.On the other hand, present requirement system
Cold load Q is less than the 2nd refrigeration load QLo_nWhen (in step SA7 be " YES "), carry out step SA8.
In step SA8, it is contemplated that subtract the situation of level 1 in existing heat source machine number of units n in operation, calculate in this condition
4th refrigeration load Q of each heat source machine when being operated with the higher limit of load factor scopeHi_n-1.
4th refrigeration load QHi_n-1Calculated by below equation (5).
[formula 4]
In above-mentioned formula (5), q is the ability of heat source machine, and Hi is the higher limit of load factor scope, and n-1 is the heat after subtracting level
Source machine operating number.
Then, judge present requirement refrigeration load Q whether less than the 4th refrigeration load Q in step SA9Hi_n-1.As a result,
It is required that refrigeration load Q is the 4th refrigeration load QHi_n-1When above (in step SA9 be " NO "), do not carry out subtracting level and return to step
SA1.On the other hand, it is desirable to which refrigeration load Q is less than the 4th refrigeration load QHi_n-1When (in step SA9 be " YES "), carry out step
SA10, subtracts 1 heat source machine of level return to step SA1.
As described above, the number control device 20 of the heat source system according to involved by present embodiment and its method and
Heat source system 1, the more than overall requirement refrigerating capacity of the refrigerating capacity to the present heat source machine for starting and heat source machine compare
Relatively, the starting number of units of present heat source machine is carried out increasing the overall refrigerating capacity of level or the heat source machine after subtracting level and heat source machine is whole
The requirement refrigerating capacity of body is compared and determines to increase level or subtract level, frequently repeats therefore, it is possible to suppress to increase level and subtract level, energy
The unit number control of stable heat source machine is enough realized.
[the 2nd embodiment]
Hereinafter, to the heat source system involved by the 2nd embodiment of the present invention number control device and its method and
Heat source system is illustrated.
Generally, the requirement refrigeration load Q in heat source system is for example above-mentioned formula (2) shown, by the cold water inlet temperature of heat source machine
Degree Tin and cold water outlet temperature Tout, cold water flow F1 etc. are calculated.Therefore, by producing deviation on measured value, so as to cause
It is required that the value of refrigeration load Q produces fluctuation, there is the erroneous judgement for causing to increase level with subtract level.
Therefore, in the heat source system involved by present embodiment, in order to avoid the increasing level based on this deviation and subtract level
Judge, following judgement is changed in the process of step SA4 shown in Fig. 5 and step SA9.
That is, in present embodiment, in step SA4, if present requirement refrigeration load Q is more than the 3rd refrigeration load QLo_n+1's
State maintains stipulated time (such as 300 seconds) set in advance, then add and start heat source machine (step SA5), similarly, in step
In SA9, if present requirement refrigeration load Q is less than the 4th refrigeration load QHi_n-1State maintain stipulated time set in advance
(such as 300 seconds), then stop 1 heat source machine.
By this method, in step SA4, step SA9, can avoid temporarily meeting condition increasing in this case
Level, subtract the erroneous judgement of level.
Replace aforesaid way, for example, the requirement refrigeration load Q that can also would be used in step SA4, step SA9 is set to
The value of stipulated time equalization.Equalization mode as used herein can be using the known method such as equalization, first-order lag.Logical
Cross this mode and can obtain same effect.
[the 3rd embodiment]
Hereinafter, to the heat source system involved by the 3rd embodiment of the present invention number control device and its method and
Heat source system is illustrated.
For example, when carrying out the unit number control involved by the above-mentioned 1st, the 2nd embodiment, even if heat source machine is with respect to specified
Load factor rate 100% is operated, and can also occur increasing level condition not to be inconsistent, it is impossible to meet the situation for requiring load.
As shown in fig. 6, for example when the lower limit for setting load factor scope is 80% as 60%, higher limit, 1 heat source machine
When A is operated with load factor 100%, though the condition of the step of meeting Fig. 5 SA2, will start when number of units increases level for 2 becomes
The condition of step SA4 is unsatisfactory for, does not therefore carry out increasing level.
For example, as shown in above-mentioned formula (2), calculate from the operating condition of present heat source machine require refrigeration load Q when, if
Heat source machine cannot play the ability under overload to load 100% operating, then according to the specification of heat source machine, therefore cannot export rule
Fixed above ability, that is, do not reach the above load of regulation.
Therefore, the load of present heat source machine does not reach more than setting, even if actually need to increase level, there is also figure
There is no the possibility for increasing level in handling process shown in 5.This is because, it is desirable to refrigeration load is the fortune from present heat source machine
Turn what state computation went out, and require that refrigeration load does not reach more than the ability of operating heat source machine, exist and correctly cannot ask
Go out the possibility of requirement refrigeration load.
The handling process in figure of Fig. 5, it is stipulated that more than time increasing level condition or grade condition that subtracts become needed for increase and decrease level sets up
Necessary condition, but the handling process in figure cannot tackle sharply increasing and reducing for load.
In present embodiment, start instruction unit 23 and possess the pressure increasing being set as more than the higher limit of load factor scope in advance
Level load factor, when the load factor of heat source machine reaches pressure increasing level load factor, does not carry out the place of step SA1 in Fig. 5 to step SA4
Reason, and force to start 1 heat source machine.
Also, when subtracting grade similarly, stop instruction unit 24 possess in advance be set as the lower limit of load factor scope with
Under pressure subtract a grade load factor, when the load factor of heat source machine reaches pressure and subtracts grade load factor, do not carry out step SA6 in Fig. 5 extremely
The process of step SA9, and force to stop 1 heat source machine.
Fig. 9 and Figure 10 are the flow charts of that represents unit number control method involved by present embodiment.The step of Fig. 9
In SB1, present requirement refrigeration load Q whether the 1st threshold value Q is judgedHi_maxMore than, the 1st threshold value is taken advantage of for forcing increasing level load factor
With nominal load and the value of present heat source machine operating number n, if as a result, present requirement refrigeration load Q is the 1st threshold value
QHi_maxMore than, then step SA5 is transitioned into, and adds starting heat source machine.Also, in step SB1, if present requirement refrigeration
Load Q is less than the 1st threshold value QHi_max, then step SA1 is transitioned into, carries out above-mentioned process.
In step SA2, judge present requirement refrigeration load Q as the 1st refrigeration load Q calculated in step SA1Hi_n
When following, step SB2 (referring to Figure 10) is transitioned into, judges present requirement refrigeration load Q whether as the 2nd threshold value QLo_minHereinafter,
2nd threshold value is to force to subtract the value that grade load factor is multiplied by nominal load and present heat source machine operating number n.If as a result, existing
Requirement refrigeration load Q be the 2nd threshold value QLo_minHereinafter, then step SA10 is transitioned into, and stops 1 heat source machine.The opposing party
Face, if present requirement refrigeration load Q is more than the 2nd threshold value QLo_min, then step SA6 is transitioned into, carries out above-mentioned process.
The number control device of the heat source system according to involved by present embodiment and its method and heat source system, in advance
It is set to that the pressure more than higher limit of load factor scope increases level load factor, and is set to heat source machine load factor and reaches pressure increasing
Force to add during level load factor and heat source machine is started, therefore, it is possible to suitably increasing level be carried out, can more reliably carry out satisfaction requirement
The operating of load.Also, similarly, preset the pressure being set to below the lower limit of load factor scope and subtract a grade load factor,
And be set to heat source machine load factor and reach when pressure subtracts grade load factor force to stop 1 heat source machine, therefore, it is possible to suitably carry out subtracting level.
Industrial applicability
In present embodiment, it is set to only determine whether the 1st threshold value, the 2nd threshold value is reached, but can be also set to tie up when this state
When specified time limit is held, carry out adding starting heat source machine, stop 1 heat source machine to replace the former.
In present embodiment, although judged with the load that heat source machine is overall as object, but also can be to each heat source machine
Load factor individually subtracts a grade load factor and is compared with increasing level load factor, pressure is forced, and carries out adding starting, stops 1
Judge.
Symbol description
1- heat source system, 20- host control device, 22- storage part, 23- start instruction unit, and 24- stops instruction unit.
Claims (11)
1. a kind of number control device of heat source system, it is adaptable to possess the heat source system of multiple heat source machines, by each described
Heat source machine exports starting order and halt instruction to carry out the unit number control of the heat source machine, the unit number control of the heat source system
Device possesses：
Storing mechanism, being stored with the refrigeration load by the heat source machine and requires relationship specifications between refrigeration load to thermal source
The increasing level primary condition of primary condition when machine carries out increasing level and the refrigeration load by the heat source machine with require refrigeration load
Between primary condition of relationship specifications when carrying out subtracting to heat source machine grade subtract a grade primary condition；
Indicating mechanism is started, when the increasing level primary condition is met, when judging to increase level 1 on present operating number whether
Subtracting a grade primary condition described in meeting, if it is determined that subtracting a grade primary condition described in being unsatisfactory for, then starting 1 heat source machine；And
Stop indicating mechanism, when meet described subtract grade primary condition when, when judgement subtracts level 1 on present operating number whether
Meet the increasing level primary condition, if it is determined that for the increasing level primary condition is unsatisfactory for, then stopping 1 heat source machine.
2. the number control device of heat source system according to claim 1, wherein,
The starting indicating mechanism is requiring refrigeration load more than making each described heat source machine in operating with load set in advance
During 1 refrigeration load when the higher limit of rate scope operates, it is judged to meet the increasing level primary condition.
3. the number control device of heat source system according to claim 1, wherein,
The stopping indicating mechanism requiring refrigeration load less than making each described heat source machine in operating with load set in advance
During 2 refrigeration load when the lower limit of rate scope operates, be judged to meet described in subtract a grade primary condition.
4. the number control device of heat source system according to claim 2, wherein,
The stopping indicating mechanism requiring refrigeration load less than making each described heat source machine in operating with load set in advance
During 2 refrigeration load when the lower limit of rate scope operates, be judged to meet described in subtract a grade primary condition.
5. the number control device of heat source system according to any one of claim 1 to 4, wherein,
In the starting indicating mechanism, when increasing level 1 on present operating number, judge to be unsatisfactory for described to subtract the basic bar of level
Whether the state of part maintains the stipulated time set in advance, if being unsatisfactory for the state for subtracting grade primary condition to maintain the rule
Fix time, then start 1 heat source machine.
6. the number control device of heat source system according to any one of claim 1 to 4, wherein,
When the starting indicating mechanism subtracts level 1 on present operating number, judge to be unsatisfactory for the increasing level primary condition
State whether maintain the stipulated time set in advance, if the state for being unsatisfactory for the increasing level primary condition maintains the regulation
During the time, then stop 1 heat source machine.
7. the number control device of the heat source system according to any one of claim 2 to 4, wherein,
Described require refrigeration load be to the value for requiring that refrigeration load is equalized in the stipulated time set in advance.
8. the number control device of the heat source system according to any one of claim 2 to 4, wherein,
The indicating mechanism that starts possesses the pressure increasing level load factor being set as more than the higher limit of the load factor scope, works as institute
The load factor of heat source machine is stated for, when more than the pressure increasing level load factor, forcing to start 1 heat source machine.
9. the number control device of the heat source system according to any one of claim 2 to 4, wherein,
The starting indicating mechanism possesses the pressure being set as below the lower limit of the load factor scope and subtracts a grade load factor, works as institute
When the load factor for stating heat source machine is that the pressure subtracts below grade load factor, force to stop 1 heat source machine.
10. a kind of heat source system, which possesses：
Multiple heat source machines；And
The number control device of the heat source system any one of claim 1 to 9.
The unit number control method of 11. a kind of heat source systems, it is adaptable to possess the heat source system of multiple heat source machines, by each described
Heat source machine exports starting order and halt instruction to carry out the unit number control of the heat source machine, wherein,
Prestore the refrigeration load by the heat source machine and require that the relationship specifications between refrigeration load are carried out to heat source machine
The increasing level primary condition of primary condition and the refrigeration load by the heat source machine when increasing level and require between refrigeration load
Primary condition when relationship specifications are carried out subtracting to heat source machine grade subtract a grade primary condition, the unit number control method of the heat source system
Possess：
Start and step is indicated, when the increasing level primary condition is met, when judging to increase level 1 on present operating number whether
Subtracting a grade primary condition described in meeting, if it is determined that subtracting a grade primary condition described in being unsatisfactory for, then starting 1 heat source machine；And
Stop indicating step, when meet described subtract grade primary condition when, when judgement subtracts level 1 on present operating number whether
Meet the increasing level primary condition, if it is determined that for the increasing level primary condition is unsatisfactory for, then stopping 1 heat source machine.
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|---|---|---|---|
| JP2012-044674 | 2012-02-29 | ||
| JP2012044674A JP5787792B2 (en) | 2012-02-29 | 2012-02-29 | Apparatus and method for controlling number of heat source systems and heat source system |
| PCT/JP2013/055107 WO2013129464A1 (en) | 2012-02-29 | 2013-02-27 | Number-of-machines control device for heat source system, method therefor, and heat source system |
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| CN104246381A CN104246381A (en) | 2014-12-24 |
| CN104246381B true CN104246381B (en) | 2017-03-08 |
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| CN201380010675.8A Active CN104246381B (en) | 2012-02-29 | 2013-02-27 | The number control device of heat source system and its method and heat source system |
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| Country | Link |
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| US (1) | US9823633B2 (en) |
| EP (1) | EP2821725B1 (en) |
| JP (1) | JP5787792B2 (en) |
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| JP5447627B1 (en) * | 2012-09-26 | 2014-03-19 | ダイキン工業株式会社 | Heat source system controller |
| JP6249331B2 (en) * | 2013-11-01 | 2017-12-20 | 三菱重工サーマルシステムズ株式会社 | Heat source control device, heat source system, and heat source control method |
| JP6324707B2 (en) * | 2013-11-13 | 2018-05-16 | 三菱重工サーマルシステムズ株式会社 | Heat source machine and control method thereof |
| KR101805334B1 (en) | 2014-02-20 | 2017-12-05 | 도시바 캐리어 가부시키가이샤 | Heat source device |
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| WO2015190525A1 (en) * | 2014-06-10 | 2015-12-17 | 東芝キヤリア株式会社 | Heat source machine and heat source device |
| JP6599124B2 (en) * | 2015-04-22 | 2019-10-30 | 高砂熱学工業株式会社 | Heat source machine and heat source system |
| JP6361074B2 (en) * | 2015-05-13 | 2018-07-25 | 三菱重工サーマルシステムズ株式会社 | Number control device, energy supply system, number control method and program |
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| DE102017204222A1 (en) * | 2017-03-14 | 2018-09-20 | Siemens Aktiengesellschaft | Heat pump and method for operating a heat pump |
| JP6871776B2 (en) * | 2017-03-27 | 2021-05-12 | 三菱重工サーマルシステムズ株式会社 | Refrigeration system and control method of refrigeration system |
| JP2019100695A (en) * | 2017-12-04 | 2019-06-24 | パナソニックＩｐマネジメント株式会社 | Refrigeration cycle device and method for driving refrigeration cycle device |
| JP7017406B2 (en) | 2017-12-27 | 2022-02-08 | 三菱重工サーマルシステムズ株式会社 | Control device, refrigerator system, control method and program |
| CN110701839B (en) * | 2018-07-09 | 2023-04-21 | 开利公司 | Cold station management device and method, computer storage medium, and cold station |
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- 2013-02-27 WO PCT/JP2013/055107 patent/WO2013129464A1/en active Application Filing
- 2013-02-27 US US14/371,662 patent/US9823633B2/en active Active
- 2013-02-27 KR KR1020147019787A patent/KR101618487B1/en active IP Right Grant
- 2013-02-27 EP EP13754535.6A patent/EP2821725B1/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| US9823633B2 (en) | 2017-11-21 |
| WO2013129464A1 (en) | 2013-09-06 |
| KR20140108556A (en) | 2014-09-11 |
| CN104246381A (en) | 2014-12-24 |
| EP2821725A4 (en) | 2016-01-20 |
| US20140358253A1 (en) | 2014-12-04 |
| EP2821725B1 (en) | 2017-04-12 |
| JP5787792B2 (en) | 2015-09-30 |
| EP2821725A1 (en) | 2015-01-07 |
| JP2013181673A (en) | 2013-09-12 |
| KR101618487B1 (en) | 2016-05-18 |
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Effective date of registration: 20170901 Address after: Tokyo, Japan, Japan Patentee after: MITSUBISHI heavy industry refrigeration air conditioning system Co Ltd Address before: Tokyo, Japan Patentee before: Mit-subishi Heavy Industries Ltd. |